/* ARGSUSED */ int bktoshell(int f, int n) /* suspend and wait to wake up */ { #if SYS_UNIX && defined(SIGTSTP) && !DISP_X11 int forced = (f && n == SPECIAL_BANG_ARG); /* then it was :stop! */ /* take care of autowrite */ if (!forced && writeall(f,n,FALSE,TRUE,TRUE) != TRUE) return FALSE; ttclean(TRUE); /* #define simulate_job_control_for_debug */ # ifdef simulate_job_control_for_debug rtfrmshell(SIGCONT); # else (void)signal_pg(SIGTSTP); # endif return TRUE; #else mlforce("[Job control unavailable]"); return FALSE; #endif /* SIGTSTP */ }
/* * bktoshell - suspend and wait to be woken up */ int bktoshell(int f, int n) { UCS z = CTRL | 'Z'; if(!(gmode&MDSSPD)){ unknown_command(z); return(FALSE); } if(Pmaster){ if(!Pmaster->suspend){ unknown_command(z); return(FALSE); } if((*Pmaster->suspend)() == NO_OP_COMMAND){ int rv; if(km_popped){ term.t_mrow = 2; curwp->w_ntrows -= 2; } clearcursor(); mlerase(); rv = (*Pmaster->showmsg)('x'); ttresize(); picosigs(); if(rv) /* Did showmsg corrupt the display? */ pico_refresh(0, 1); /* Yes, repaint */ mpresf = 1; if(km_popped){ term.t_mrow = 0; curwp->w_ntrows += 2; } } else{ ttresize(); pclear(0, term.t_nrow); pico_refresh(0, 1); } return(TRUE); } if(gmode&MDSPWN){ char *shell; int dummy; vttidy(); movecursor(0, 0); (*term.t_eeop)(); printf("\n\n\nUse \"exit\" to return to Pi%s\n", (gmode & MDBRONLY) ? "lot" : "co"); system((shell = (char *)getenv("SHELL")) ? shell : "/bin/csh"); rtfrmshell(dummy); /* fixup tty */ } else { movecursor(term.t_nrow-1, 0); peeol(); movecursor(term.t_nrow, 0); peeol(); movecursor(term.t_nrow, 0); printf("\n\n\nUse \"fg\" to return to Pi%s\n", (gmode & MDBRONLY) ? "lot" : "co"); ttclose(); movecursor(term.t_nrow, 0); peeol(); (*term.t_flush)(); signal(SIGCONT, rtfrmshell); /* prepare to restart */ signal(SIGTSTP, SIG_DFL); /* prepare to stop */ kill(0, SIGTSTP); } return(TRUE); }